Update, 4.18.16, 10 a.m.: Police said Jason Geier was found in Brooklyn, unharmed.

A missing Dix Hills teenager who has depression and bipolar disorder has not had his medication in more than 24 hours and might be suicidal.

Police first issued an alert for 17-year-old Jason Geier on Tuesday, after he was last seen on Arista Drive around 3:30 p.m. that day. The teen was still missing on Wednesday night, and the Suffolk County Police Department renewed a public request for help to find him.

Anyone who has seen Geier, who has blonde hair and blue eyes, or has information about his location is asked to call 911 or the SCPD’s 2nd Squad at 631-854-8252.

In addition to having depression and bipolar disorder, the teen has ADHD, police said. He could possibly be suicidal.

Geier is 5 feet 9 inches tall and weighs 130 pounds. When he was last seen, he was wearing a blue jacket, blue jeans and bright yellow sneakers.

Police said the Dix Hills kid also has family in Merrick.